64193420 has 36 divisors (see below), whose sum is σ = 136558800. Its totient is φ = 25347168.

The previous prime is 64193417. The next prime is 64193431. The reversal of 64193420 is 2439146.

64193420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322481 + ... + 322679.

It is an arithmetic number, because the mean of its divisors is an integer number (3793300).

Almost surely, 2^64193420 is an apocalyptic number.

It is an amenable number.

64193420 is an abundant number, since it is smaller than the sum of its proper divisors (72365380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64193420 is a wasteful number, since it uses less digits than its factorization.

64193420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 64193420 is about 8012.0796301585. The cubic root of 64193420 is about 400.4025530750.

The spelling of 64193420 in words is "sixty-four million, one hundred ninety-three thousand, four hundred twenty".